The star captioned the photo: "Nature= the prettiest backgrounds. No filter needed.

"Loving my extra fold over tummy lines this year, they look like a six pack wahoo! Winning! Happy hump day."

Fans were loving the reveal, with it racking up more than 128,000 likes.

Many praised her for her body positivity, with one gushing: "I love how you don’t care, you have a beautiful body."

Another added: "True inspiration to other mums! You look amazing!"

The photo comes as Stacey told Daily Star Online about her body secrets in an exclusive chat.

INSTAGRAM/STACEY SOLOMON

RED HOT: Stacey wowed fans with her latest bikini reveal

INSTAGRAM/STACEY SOLOMON

SIZZLING: The Loose Women has posed bikini snaps of herself on Instagram before

When asked if she was strict or relaxed with healthy eating, Stacey revealed: "Probably a bit of both. I think lots of rules and restrictions aren't good because it makes you feel under pressure.

"It's harder to be healthy when you feel under pressure."

She added: "I take a relaxed approach to it. My sister is a personal trainer and fitness instructor and she always tells me 80/20 or 70/30 is best when it comes to being healthy.

"The majority of the time I try and be as good as I can about what I eat. But I also wouldn't beat myself up about having a big old takeaway or anything like that."

Stacey also revealed that she isn't a fan of fellow celebrities who Photoshop their images.

INSTAGRAM/STACEY SOLOMON

RELAXED APPROACH: The star said she doesn't restrict herself when it comes to food

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DOWN TO EARTH: Stacey is known for her 'real' image

She commented: "I do a lot of work with Childline and NSPCC and I think about the negative impact that all of these perfect images are having on the next generation and I just don't want to be a part of that."

"I'll happily post a nice picture of myself with makeup on, but I'll also post pictures without makeup.

"I think I'm really pretty without makeup as well."

Asked if she ever gets online trolls, she added: "I do get trolls, but when you're on social media, you open yourself up to everyone having an opinion."

However, Stacey did claim the majority of comments are "really positive and uplifting".